What is a short summary of the story, Three Women of Chuck's Donuts, from the collection, Afterparties?

In the story, Three Women of Chuck's Donuts, Sothy and her daughters, Tevy and Kayley, spend their evenings together at the family donut shop, Chuck's Donuts. When a mysterious customer begins frequenting the shop, the women make a series of hypotheses about his identity. By the end of the story, the women's experiences with each other, and the man, teach them about their pasts and the future.